Impeller device capable of passively self-adaptive round-trip two-way water flow

Abstract

The invention discloses an impeller device capable of passively self-adaptive round-trip two-way water flow. The impeller device comprises blades, blade handles, shaft sleeves, limiters and hubs. Theroots of the blades are fixedly connected with the blade handles, blade handle holes are formed in the hubs in the radial direction, the blade handles are installed in the blade handle holes, and theblade handles can rotate around flange central axes of the blades in the blade handle holes. The tail portions of the blade handles are connected to the limiters, the limiters are provided with protruded limiting edges which surround the tail portions of the blade handles, the blade handle holes are internally provided with the shaft sleeves, and the blade handles are connected into the shaft sleeves in a sleeved mode. The blades are in a swept-back shape, and hydrodynamic center axes of the blades are inclined 7.8 degrees toward the rear edges of the blades relative to the flange center axisof the blades. According to the impeller device capable of passively self-adaptive round-trip two-way water flow, the structure is simple, no additional hydraulic or electric source is required for the blades, the blade pitch angle can be changed by self-adapting the flow direction depending on the own structure of the blades, the water flow energy is captured efficiently by limiting at the set installed angle by the limiters to drive a generator to output the electric energy, the impeller device is no need to seal, hydraulic or electric source fault node is avoided, and safety and reliabilityare achieved.

Description

technical field [0001] The invention relates to the technical field of marine tidal current or inland water flow fluid machinery design, in particular to a horizontally arranged passive self-adaptive reciprocating bidirectional water flow power generation impeller device. Background technique [0002] At present, the development and utilization of ocean energy has become a hot spot. Among them, a variety of new power generation devices have been formed through the utilization of tidal current energy, mainly including horizontal axis type and vertical axis type. Traditional hydroelectric generating sets use hydraulic potential energy to generate electricity. Yu mature. However, the impellers of most tidal current power generation devices adopt the one-way power generation and fixed propeller method, which cannot effectively utilize the two-way tidal current energy. Some tidal current power generation devices also use hydraulic (or electric) pitch control technology for refere...

AI Technical Summary

Problems solved by technology

However, the impellers of most tidal current power generation devices adopt the unidirectional power generation and fixed propeller method, which cannot effectively utilize the two-way tidal current energy. Some tidal current power generation devices use hydraulic (or electric) pitch technology for reference to hydroelectric power generation runner technology, and their reliability is low in marine environments. Not high, tidal energy utilization efficiency is still not high

Traditional hydropower only uses the potential energy of water head to generate electricity, and its impeller adopts hydraulic pitch technology, which is not suitable for the utilization of water kinetic energy with extremely low water head

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